If you have looked closely at the eyes of different animals, you will notice their pupils come in various shapes: round, vertical or horizontal ovals or crescents. Scientists now think they know the reason behind the shape of some animals’ pupils. There is diversity in shape because it depends on how big the animal is and whether it’s a predator or prey. It also relates to their view of the horizon. Listen to hear more about the new discovery and what it can tell us about animals and evolution.
Story Length: 4:53
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August 28, 2015
6:06
The animal that tops the illegal wildlife trade is surprising. It’s not an elephant or tiger, but an exotic anteater called a Pangolin. This animal is a mammal with scales, has a tongue the size of its body, and an unfortunate self-defense mechanism. They are on their way to becoming extinct because their scales are used in Asian medicine and their meat is considered delicious in some countries. Some organizations are petitioning to list the Pangolin as endangered in the U.S. Listen to hear more about the efforts to save the Pangolin.
Read MoreAugust 27, 2015
3:31
Are animals faster than humans? Common sense says horses are faster, but scientists say humans have the edge in marathon distances. Ancient man used to chase his dinner; thus, people have adapted to run long distances. This adaptation is put to the test every year in England when humans race horses on a 22-mile course through Wales. It’s an annual competition that started in 1980. Listen to find out who won the race this year and who has evolved to be faster.
Read MoreNovember 4, 2014
8:48
Human embryonic stem cells are able to become any kind of tissue in the body. Because of this, many researchers see huge potential for curing and preventing disease. Up until now this has been theory, but a new study has had early success in using stem cells to improve the eyesight of the blind. This sound-rich story takes you into the operating room to hear the eye surgery and meet someone whose life was changed by the procedure.
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